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Issue metadata

Status: Duplicate
Merged: issue 812451
Owner:
Closed: Feb 2018
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Null-dereference READ in v8::internal::Simulator::LoadStoreHelper

Project Member Reported by ClusterFuzz, Feb 15 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5385947877998592

Fuzzer: mbarbella_js_mutation
Job Type: linux_msan_d8
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  v8::internal::Simulator::LoadStoreHelper
  v8::internal::Simulator::Run
  v8::internal::Simulator::CallImpl
  
Sanitizer: memory (MSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_msan_d8&range=51296:51297

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5385947877998592

Issue filed automatically.

See https://github.com/google/clusterfuzz-tools for more information.
 
Project Member

Comment 1 by ClusterFuzz, Feb 15 2018

Labels: Test-Predator-Auto-Owner
Owner: neis@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/v8/v8/+/af677f29b1b7c0286b423c4e745303ed51de88e9 ([ic] EmitElementStore: don't miss when hitting new space limit.).

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label. If you aren't the correct owner for this issue, please unassign yourself as soon as possible so it can be re-triaged.

Comment 2 by neis@chromium.org, Feb 15 2018

Mergedinto: 812451
Status: Duplicate (was: Assigned)
Project Member

Comment 3 by ClusterFuzz, Feb 16 2018

ClusterFuzz has detected this issue as fixed in range 51305:51306.

Detailed report: https://clusterfuzz.com/testcase?key=5385947877998592

Fuzzer: mbarbella_js_mutation
Job Type: linux_msan_d8
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  v8::internal::Simulator::LoadStoreHelper
  v8::internal::Simulator::Run
  v8::internal::Simulator::CallImpl
  
Sanitizer: memory (MSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_msan_d8&range=51296:51297
Fixed: https://clusterfuzz.com/revisions?job=linux_msan_d8&range=51305:51306

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5385947877998592

See https://github.com/google/clusterfuzz-tools for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.

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